Testing av_tdrdi_alloc()
alloc 1: size>0=yes, num_ref_displays=1
display 0: width_exp=3 width_man=100 left=0 right=1

Testing multiple displays
alloc 3: num_ref_displays=3
display 0: width_exp=1
display 1: width_exp=2
display 2: width_exp=3

alloc (no size): OK

Testing OOM paths
alloc OOM: OK